Smart Electronics Kits NE555 CD4017 Light Water Flowing Light LED Module DIY Kit

There is no welding for the product; you need to DIY your own welding products! Attention please!!!!

- Board size. 53mm*19mm
- Supply Voltage :2.5 - 14 .5 V
- This package is mainly decimal counter circuit and circuit generated by the clock , from the core of the self-excited.
- NE555 multivibrator power through R2, R3, R4 charge the capacitor C1, C1 started when charging ,
- NE555 2 feet still in low, so the output pin 3 goes high when power through R2, R3, R4 to charge C1 to 2/3 of the supply voltage , the output pin 3 level from high to low ,
- NE555 conducting internal discharge , capacitor C1 through R4, R3,
- NE555 7 feet discharge until the voltage across C1 is less than 1 /3 of the supply voltage ,
- NE555 and 3 feet level from low to high . C1 and charge again this cycle oscillations formed .
- Charging time : 0.695 (R2 + R3 + R4) C1,
- Discharge time: 0.695 (R4 + R3) C1, R4 can be adjusted to control the output frequency of the oscillator , the oscillation clock signal is applied continuously.
NE555 CD4017 14 feet , the output terminal 10 is connected with the CD4017 10 LED, when the output terminal 10 turns CD4017 generated clock signal is applied at a high level , the D1 - D10 are sequentially lit to form a water -light effect .
You can adjust the flow rate adjustment R4 LED lights